| Server IP : 127.0.1.1 / Your IP : 216.73.216.172 Web Server : Apache/2.4.52 (Ubuntu) System : Linux bahcrestlinepropertiesllc 5.15.0-113-generic #123-Ubuntu SMP Mon Jun 10 08:16:17 UTC 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.33 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /usr/lib/modules/5.15.0-153-generic/build/arch/mips/include/asm/mach-lantiq/xway/ |
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/* SPDX-License-Identifier: GPL-2.0-only */
/*
*
* Copyright (C) 2011 John Crispin <john@phrozen.org>
*/
#ifndef LTQ_DMA_H__
#define LTQ_DMA_H__
#define LTQ_DESC_SIZE 0x08 /* each descriptor is 64bit */
#define LTQ_DESC_NUM 0x40 /* 64 descriptors / channel */
#define LTQ_DMA_OWN BIT(31) /* owner bit */
#define LTQ_DMA_C BIT(30) /* complete bit */
#define LTQ_DMA_SOP BIT(29) /* start of packet */
#define LTQ_DMA_EOP BIT(28) /* end of packet */
#define LTQ_DMA_TX_OFFSET(x) ((x & 0x1f) << 23) /* data bytes offset */
#define LTQ_DMA_RX_OFFSET(x) ((x & 0x7) << 23) /* data bytes offset */
#define LTQ_DMA_SIZE_MASK (0xffff) /* the size field is 16 bit */
struct ltq_dma_desc {
u32 ctl;
u32 addr;
};
struct ltq_dma_channel {
int nr; /* the channel number */
int irq; /* the mapped irq */
int desc; /* the current descriptor */
struct ltq_dma_desc *desc_base; /* the descriptor base */
int phys; /* physical addr */
struct device *dev;
};
enum {
DMA_PORT_ETOP = 0,
DMA_PORT_DEU,
};
extern void ltq_dma_enable_irq(struct ltq_dma_channel *ch);
extern void ltq_dma_disable_irq(struct ltq_dma_channel *ch);
extern void ltq_dma_ack_irq(struct ltq_dma_channel *ch);
extern void ltq_dma_open(struct ltq_dma_channel *ch);
extern void ltq_dma_close(struct ltq_dma_channel *ch);
extern void ltq_dma_alloc_tx(struct ltq_dma_channel *ch);
extern void ltq_dma_alloc_rx(struct ltq_dma_channel *ch);
extern void ltq_dma_free(struct ltq_dma_channel *ch);
extern void ltq_dma_init_port(int p);
#endif